Continuous-screw-feed magazine



M. H. JONES CONTINUOUS SCREW FEED MAGAZINE Dec. 24

Filed July 30, 1923 mam/pm;

INUENTUR .MHRHIEHEEMHTL/UM Patented Dec. 9, 1924.

UNITED STATES PATENT OFFICE.

JYEORRIS HERBERT JONES, 0F PO'RT ARTHUR, ONTARIO, CANADA, ASSIGN'OR '10 PORT ARTHUR SHIPBUILDING CO. LTD, OF PORT ARTHUR, ONTARIO, CANADA.

CONTINUOUS-SCREW-FEED MAGAZINE.

Application filed. July 30, 1923.

To all whomit may concern.

Be it known that I, .Monnis Hnnsrnr JONES, a citizen of the Dominion of Canada, and resident of Port Arthur, in the district of Thunder Bay and Province of Ontario, Dominion of Canada, have invented certain new and useful Improvements in Continuous-Screw-Feed Magazines, of which the following is a specification.

This invention has relation to certain new and useful improvements in a continuous screw feed magazine for paper pulp machinery and has for its primary object the provision of a simple screw feed mechanism which will serve constantly to retain the logs in firm engagement with the working face of the grinding stone without permitting binding of the logs.

The invention has for another object the provision of a magazine grinder of the character stated in which the feed screws are of spiral form and arranged in series in opposite sides of the magazine for operation on the uppermost faces of the side logs to feed the logs downwardly with all of the lower logs firmly engaged with the grinding stone, without permitting binding of the logs.

A further object of the invention resides in the provision of a magazine of the character stated which is of simple construction and operation and the feed screws arranged in corresponding series or pairs in the opposite sides of the magazine.

With the foregoing and other objects in view, as will appear as the description proceeds, the invention consists in the novel construction, combination and arrangement of co-operating elements as hereinafter more specifically set forth, claimed and shown in the accompanying drawings, forming a part of the present application, and in which Fig. 1 is a vertical section through the lower portion of the magazine and the compartment in which the grinding stone operates, the view being taken substantially on the plane of line aa of Fig. 2, looking in the direction indicated by the arrows.

Fig. 2 is a transverse horizontal section. substantially on the plane of line fi -2- of Fig. 1, looking in the direction indicated by the arrows.

Referring more in detail to the drawings in which similar reference characters designate corresponding parts throughout the several views, it will be noted that the maga- Serial No. 654,678.

zine 5 is of substantially rectangular form in cross section, as well as in elevation and has its reduced lower end 6 suitably mounted on the upper portion 7 of the pulp trough 8 in which the grinding stone 9 operates. The shaft 10 for the grinding stone 9 is extended horizontally through the pulp trough 8 and rotatably mounted therein, so that the grinding stone 9 is located immediately beneath the reduced lower end 6 of the magazine 5. This permits the logs 11 to be properly fed to the working face or periphery of the grinding stone 9 and held firmly thereon by the special feeding mechanism provided for this purpose.

Located in the oppositely extended or outwardly ofl'set sides of the magazine 5 are pairs of opposed channel irons 12 to provide spaced pockets 13 in said oppositely extended sides. Plates 14 are mounted across the channel irons 12 with the vertical or longitudinal edge of the plates 14 extended over the edges of the pockets 13, as shown clearly in Fig. 2. Rotatably mounted in each pocket 13 is a parallel feed screw 15 having a reduced lower end 16 rotatable in the bottom wall 17 of the pocket, while the reduced upper end 18 of the feed screw 15 is rotatably mounted in a suitable bearing bracket 19 carried in the rear wall of the pocket 13. It will be seen from Figs. 1 and 2 that two or more pockets 13 are provided in each of the outwardly offset sides of the magazine 5 and each feed screw 15 practically fills the pocket 13 in which it is mounted, with the spiral threads of the feed screw 15 projecting through the open side of the pocket past the plates 1 and into the main portion of the magazine 5 so as to operate on the uppermost faces of the side logs within the magazine 5 and constantly feed the same downwardly to force downwardly all of the logs 11 within the magazine 5 and retain the lowermost logs in firm engagement with the working face or periphery of the grinding stone 9 during operation of the screw feed magazine. The feed screws 15 may be operated by any suitable mechanism not shown and may be operated in synchronism in pairs or series, so as to assure the highest efficiency of operation of the screw feed magazine.

It is believed the complete construction and operation may now be apparent from the foregoing paragraphs taken in connection with the accompanying drawings without further detail description. Furthermore, it is to be understood that minor changes in the details of construction, combination, and arrangement of cooperating elements may be resorted to within the scope of What is claimed, without departing from the spirit of the invention.

What I claim as new is:

A continuous feed screw structure for paper pulp machinery including, a magazine having pockets arranged in series in opposite sides thereof and extending vertically with the inner sides of the pockets opening into said magazine; feed screws arranged in series in said pockets with their screw por- 15 tions extending into the magazine for operation on the uppermost faces of the side logs in the magazine to force the logs downwardly in said magazine; said series of feed screws being adapted to operate in synchronism to assure continuously proper downward feeding of the logs; with the lowermost logs firmly retained in engagement with the grinding means below the magazine. a

In testimony whereof, I aflix my signature.

MORRIS HER-BERT JONES. 

